American Journal of Applied Sciences

Optical Properties and Sugar Content Determination of Commercial Carbonated Drinks using Surface Plasmon Resonance

W. Y.W. Yusmawati, H. P. Chuah and M. Y.W. Mahmood

DOI : 10.3844/ajassp.2007.1.4

American Journal of Applied Sciences

Volume 4, Issue 1

Pages 1-4


In this study, an optical sensor based on Kretschmann SPR technique was used to detect the sugar content in commercial carbonated drinks. Three samples of carbonated drinks labeled as "Coke", "100 Plus" and "F&N Orange" have been chosen for angle scan SPR measurements. All the measurements were carried out at room temperature using He-Ne laser beam (632.8nm, 5mW) as a light source. The commercially available carbonated samples were diluted by adding distilled water to produce solutions with different sugar content. The results show that the shift of resonance angle (ΔθSPP) increases linearly with the sugar content in which the detection limit and sensor sensitivity could be quantified. Therefore, this technique could be used as optical sensor for detecting sugar content in carbonated soft drinks.


© 2007 W. Y.W. Yusmawati, H. P. Chuah and M. Y.W. Mahmood. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.